Photographic accessory



[F.SCHILLING.

PHOTOGRAPHIC ACCESSORY.

APPLICATION FltED MAY 29. 1919.

1 72,458, Patented Mar. 22, 1921.

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UNITED STATES PATENT OFFICE.

CHARLES SGHILLING, OF UNION HILL, JERSEY.

PHOTOGRAPHIC ACCESSORY.

Application filed. May 29, 1919. Serial No. 300,67 6.-"'

To (171 whom it may concern:

Be it. known that'I, CHARLES SCHILLING a citizen of Switzerland, residing at Union Hill, county of Hudson, and State of New Jersey, have invented certain new and useful Improvements in Photographic Accesseries, of which the following is a specification.

This invention relates generally to photographic accessories having more partlcular reference to a device whereby the shutter of a camera may be automaticall thrown to expose the sensitized plate or 1m.

Theinvention has broadly for an object to provide a device whereby anyone uslng a camera may set the shutter to operate auto-- matically after a certain period of timeto enable the user to position himself within the focus of the camera to be included in the picture. I

A further object is to provide a device of this kind which is simple in construction I and compact in form and of relativelysmall size, and which may be readilyapphed to ordinary types 'of cameras, and changed from one camera to another as desired.

For further comprehension of the invent ion, and of the objects and. advantages thereof. reference will be had to the following description and accompanying drawings, and

to the appended claims in which the various novel features of the invention are more.

particularly set forth.

Figure 1 of the drawings is a face view of a device constructed according to my invention.

Fig. 2 is a top side view thereof."

Fig. 3 is an enlarged rear view with the cover removed.

Fig. 4 is a side view transverse section.

Fig. 5 is a detail transverse sectionon the line 5-5 of Fig. 3, omitting the braking device.

Fig. 6 is a horizontal section on the line 6-6 of Fig. 3.

As here shown my improved device comprises a circular face plate 1 which forms a frame or support for the'operatin parts, a flanged cover 2 cooperating with te plate 1 to form a casing. V

l pon the plate 1 is fixed a guide block 3 having the face thereof which abuts against the plate 1 vertically grooved as at to receive slidably a rack-bar 5 having its upper with the cover in end bent horizontally back as at 6 and pro- Specification of Letters Eatent.

Patented Mar.

vided with a notch or recess 7. This rack. bar has-teeth 8 formed on one side thereof. which mesh with a pinion 9 on a shaft 10, which extends through the late 1 and block Upon the outer end 0 "the shaft 10 is fixed a handle 11 whereby it'may be rotated.

Upon the rear of the block 3 is fixed a spring case 12 through which the shaft 10 also passes. A watch spring 13 is contained in this case'and may be secured in the u'sual manner at oneend to the case andat the other end to a hub 14 fixed on the shaft 10. The spring is so arranged that when shaft 10 is rotated by handle 11- in a direction to move the end'6 of the bar 5 out of the main casing a winding movement is imparted-to the spring so that the latter will, when released, move bar 5 in an opposite direction.

Fixed to the rear end of shaft 10 is. a

17 pivoted as at 18 to a gear 19 loose upon. the shaft 10adjacent the ratchet 16, a spring 20 pressing this pawl against the rac'het wheel. The gear 19 meshes with a pinion 21 formingone of a train of multiplying gears wh1ch here comprises the alternatin gears and plnion's 22, 23, 24 and 25 in addltion to of the train, a braking or retarding influence being thus placed on the shaft 10 when ro-' tated under the action of spring 13. A pin 30,'carried on an arm 31 pivoted as at 32 upon the front of the face plate 1 jecting. through a slot 33 in this face plate, may be moved into and out of the path of travel of the fan, thus providing a releasable stop for holding the power mechanism against operation.

and pro- The present embodiment of the invention is adapted to operate with the well known;

plunger type of shutter throwing device I which comprises a flanged member'35 on the end of a tube 36 and provided with a plunger 37.

In operation the handle 11 is turned to .wind spring 13 and move bar 5 out, ratchet wheel 16 slipping under pawl 17 so that the dependently of the braking device, the pin winding, or setting, movement is effected inp 75 ratchet wheel 16 which is engaged by a pawl so being moved into engagement with the fan 28. 'The device is then suspended from the member 35, the hooked end 6 of bar 5 straddling the latter and resting on the flanged .lower end thereof. In this position the boting device an appreciable time will elapse before the plunger 37 moves sufliciently to throw the shutter, enabling the person manipulating the device to place himself within the focus of the camera to be included in the photograph.

As will be apparent my improved device is easy to operate and may be carried around without inconvenience, occupying no more space than an ordinary watch. Moreover since it does not require to be fastened in position it can be transferred without any trouble from one camera to another as desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A device of the class described comprising a casing, a grooved guide block secured upon one of the plates of the casing, a rotary shaft passing through and journaled in said casing, a pinion fast on said shaft, a ratchet fast on the inner end of said shaft, a gear loose on said shaft, a watch spring, a case therefor, said spring having its ends secured respectively to said case and to said shaft,

an operating bar slidably mounted in said groove and provided with a rack in mesh with said pinion, a retarding device, a train of gears connecting said gear loose on said shaft with said retarding device, means for rotating said shaft in one direction to wind said spring and project said operating bar, and means for releasing said retarding device to permit the spring to unwind to rotate said shaft in a reverse direction to retract said bar.

2. A device of the class described comprising a clrcular casing, a grooved guide block secured upon the inner face of one of the casing plates, a rotary shaft passing through and journaled in said plate and guide block, a pinion fast on said shaft and extending into the groove in the guide block, a ratchet fast on the inner end of said shaft, a gear loose on said shaft, a watch spring, a case therefor carried by said guide block, said spring having its ends respectively secured to said case and said shaft, an operating bar slidably mounted in said groove and provided on one edge with a rack in mesh with said pinion, a retarding device, a train of gears connecting said gear loose on said shaft with said retarding device, means for rotating said shaft in one direction to wind said spring and project said operating bar and means for releasing said retarding device-to permit the spring to unwind to rotate said shaft in a reverse direction to retract said bar.

In testimony whereof I have afiixedmy signature.

CHARLES SCHILLING. 

